Glass-drawing machine.



PATENTED FEB 20, 1906.

G. H. HARVEY.

GLASS DRAWING MACHINE.

APPLIGATJION FILED APR 13, 1903.

WITNESSES:

INVENTOR,

' ble 15 are closed a ainst the sides of the glass 9 om the, sheetsuspended above.

.. sheet-glass made in this manner requires less handling than when madein cylindrical form,

' manner which necessitates cutting, reheating, and flattening.

The clamps 9 'could'be dispensed with and the shear alone used. In thatevent the gatherer would have to descend into the glass or a gather foreach sheet, but where a su porter is Used tohold the lower portion of te severed sheet then the operation is as follows: As above described,after the upper portion of the glass has beensheared ofl and removed asecond pair of tongs 5, if desired, are low- Med and attached to lugs 11of the clamp 9 and raised, as before described, when a second pair ofclamps 9 are attached to the glass and the portion above is sheared offand removed. The second pair of clamps are now raised with its dependentglass and a third set of clamps secured to the glass and the upperportion sheared off and removed. This operation may be repeatedindefinitely or at least as long as any glass in workable conditionremains in the tank.-

It is apparent that sheet-glass made in this as not only the featuresmentioned before, but the further advantage also of being made, as itwere, from a single strand of eraser wrinkles, flaws, and air-bubbles,Which are all liable to appear in the second draw of the glass from thetank if the dead or chilled end is permitted to fall back into the bodyof the glass in the tank aftera sheet is drawn and severed.

What I claim is 1. In the art of manufacturing glass, a receptacleadapted to contain glass in a liquid or semiliquid state, arefining-ring supported. thereon, and means of communication be tweensaid receptacle and the interior of said refining-ring above the levelof the lass.

2. In the art of manufacturing g ass, a receptacle-containing glass in aliquid or semiliquid form, a refining-ring supported thereon, an orificein said refining'ring, and means in the ring for reducing thetemperature of said orifice.

3. In the art of manufacturing glass, a receptacle adapted to containglass in a liquid or semiliquid form, a refining-ring supported thereon,means of communication between glass of uniform character, whichprevents 5 said receptacle and the interior of the refining-ring abovethe level of the glass, and means for reducing the temperature in theorifice of said refining-ring.

Signed by me at Pittsburg, Pennsylvania, this 9th day of April, 1903. 3

. GEORGE H. HARVEY.

Witnesses:

M. L. AVNER, EMELINE BUTT R.

